Pressure gauge



FIG. 1 is a top perspective view of an embodiment of a pressure gauge showing a new design;

FIG. 2 is a top plan view of the pressure gauge of FIG. 1, with the broken lines shown therein forming no part of the claimed design;

FIG. 3 is a bottom plan view of the pressure gauge of FIG. 1;

FIG. 4 is a rear elevation of the pressure gauge of FIG. 1;

FIG. 5 is a front elevation of the pressure gauge of FIG. 1;

FIG. 6 is a left side elevation of the pressure gauge of FIG. 1; and

FIG. 7 is a right side elevation of the pressure gauge of FIG. 1; and,

FIG. 8 is a side view of the pressure gauge of FIG. 1 attached to a spray gun, shown in broken lines, presenting a typical environment of the new design. The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a pressure gauge, as shown and described. 